RFC so we don't conflict with WP 4.0

I am working on closing up open issues, since we have so many. The
issues that I wrote code for this evening are #1462
https://github.com/wp-e-commerce/WP-e-Commerce/issues/1462 where there
were two divs when only one was needed which caused an issue with a site
and #1415 to avoid conflicts with WordPress 4.0.